Erasing device for type-writers.



- H. M. VAUGHAN. BRASI RG DEVICE FOR TYPE WRITERS:

APPLIGATION FILED PE1 13, l911 Patnted'Mar. '5, 1912.

j n-uzn-oi, if. M. Va ugh a citizen of the United States of America,-

HENRY M. VAUGHAN, F NEWTON, IOWA.

' ERASING DEVICE FOR, TYPE-WRITERS.

Specification of Iietters Z'E'a.1;ent.'

Application filed February 13,1911. Serial No. 608,356.

To all whom'z't may concern:

Be it known that I, HENRY MJVAUGHAN,

and a residentof Newton, Jasper county,

Iowa, have invented certain new and useful Improvements in Erasing Devices for Type- WVriters, of which the following is a specification.

My invention relates to improvements in erasing means for type-writing machines, and the object ofmy improvement is to provide aneraser movable from a fixed base on the'machine to'and' from the movable platen of the machine for convenient and self-adjustable use thereon.

' Another object ofmy improvements is to suitably combine with the erasing-means other means adapted to concurrently act in. I removing any lit-ter .accruing from the action of the erasing-means on the object on the platen, both the eraser and the other immediatelyv theretofore means being mounted and adapted to impinge upon a space on the platen which has by a type-face.

These objects -I have accomplished by the means which are hereinafter described.

and claimed, and which are illustrated in the accompanying drawings, in which:

Figurel is a partial view of a type-writ ing machine, showingbthe relative positions of the movable erasing-means on a fixed base relative to,the movable platen in full 1 lines, with the position of the erasing-means when retracted away from the platen, in dotted lines. Fig. 2' is an enlarged detail perspective view of the said erasing-means when furnished with a pivoted bowed support. Fig. 3 is an enlarged side elevation of the combined eraser and brush with fingerpiece, as separated from the supporting.

means. Fig. 4 is a' front elevation of the structures shown in Fig. 3. Fig. 5 is "an elevation of the said eraser as supported on a single supporting arm. Similar characters of reference designate corresponding parts throughout the several views.

In Fig. 1, the character a represents a fixed support of bowed form on a type-writing machine, which is' situated at one side of the machine and anterior to one end of the movable platen e. Comprised within this bowed support is the usual plurality of type-bars employed in this class of machme,

I been acted upon ofbowed form similar to that of the said support.

4 port 6-2 is offset upwardly "in such a man'- ner as to provide a r'ectan'gularly formed seat for a nut 1", such offset parts's serving .to keep said nut fixed relative threto,.whenl a short screw or bolt ofthreaded thereinto is moved relatively thereto. The bolt 0 Patented Mar. 5,1912.

passes through registering openings in the rubber eraser 7 and the spaced apart hold ing arms uof a finger-piece g, the latter extending upwardly and having oppositely located concavities for finger-holds. The arms u are also secured to said eraser, k by means of rivets t.

v .Washers n may beused between the bolt head and the adjacent arm u, and between the arm u on the other side of the eraser. and the offset part 8 of the bowed support if desired, and as shown, and eitlsr may be re- "moved or others inserted to properly locate the eraser relatively to" the platen, particularly when the eraser may have become worn and'a'little out ofline, or to adjustfor different type.s'izes.'- I have combined with my said erasingmeans, other means for brushing away the litter resulting from the erasing. action on -the paper on the platen. This means comprises a brush Z secured in ahollow tube 70 medi'allybet-ween the arms of the finger-piece 9 adjacent and, fitting upon the upper fiat edge of the eraser h-by means of a rivet m. The tube'k is shorterthan the brush, the ends of the lat ter projecting therefrom, and the brush ends being trimmed and of such a length and so located relatively to the circular edge of the eraser, that their brushing parts are tangent with said edge. 'This disposition of thebrush-ends causes them to act evenly upon the paper immediately after the action of said, eraser thereon, and. the eraser with said brush act together in the same alin-ement in moving alternately back and forth over the paper on the platen.

I Since the combined eraser and brush are so mounted as to be separable from the bowed support, they may be reversed when worn down considerably on the part of the edge used, to present fresh and unworn edges to. the paper. The eraser may be reversed by" simply withdrawing-the bolt and replacing it when the eraser has been turned over. As wlll be seen lIi'Flg. 1, the edge of the eraser is so located as to impinge upon the platen at a-location immediately to one side :of the spot thereon on which the type-bars er'aser edge may have been worn down, the

erasing contact Wlll always be perfect, since the eraser is movable toward the platen.

' v I do. not intend to confine myself strictly to the exact pattern of eraser or supportingmeans therefor shown, since it is obvious that other and similar means may come within the scope and principle of my invenbody 5 of cylindrical form, the latter mounted to rock in a bearing in a body 7 in-. tegral witha base 9 which is secured by the tion. I have shown therefore in Fig. 5, a form of eraser support, which comprises a single arm 1 whose forked free end 2 holds pivotally the eraser holder g with the brush Z. .The other end of the arm- 1 is hinged for forward and back swinging movement to a shaft or pintle 4; in a projection 3 of a rockscrews 10 to the machine frame 11. The

' I iorward part ofthebody 7 isclosed to prevent th'earm 1 from passing forward fromthe vertical position, the part 8 of the body serving as a stop for movements to the right .bination',

contact with said platen at a tance from the connection ofsaid body with .said fixed supporting means.

of said arm, while the'arm when swung forward from the platen 6, may be swung down to the left into a grooved seat 6 1n said body '7, out of the way, the whole being within the scope of my invention.

'VV hen desired, a stop may be furnished for the bowed arm bz', such asthe screwhead 0 shown in Fig. 1, to prevent the arm from moving to the left beyond the proper distance. 7

1 Having described my invention, what 1 Patent, is:

1. In a typewrit-ing machine, in combina' tion, fixed supportlng means, a relatively 6 movable platen, a rigid arm movable from said fixed supporting means toward and from said platen, and erasing-means mount-1'".

claim as new, and desire to secure by Letters ed on said rigid arm and reversible to fpresent unv. orn parts to said platen.

2. In a typewriting machine, in combination, a platen, fixed supporting means, era'sing-means pivotally mounted" on and adjustable relatively tosaid supporting-means and to'the platen, said erasing-means'belng a w mounted to contact with the platen at a uni- -form distance from its pivotal mounting.

3.1m a typewriting machine, iiioomfixed supporting means, a'relaa rigid body move tively movable platen, able from said fixed supporting means toward and-from said platen, and-erasing(i means piv'otally mounted on said body, erasing-means being mounted suitably to uniform dls- Signed at Waterloo, Iowa, this 28th day of Jan. 1911.

HENRY mavauenan Witnesses;

GEO. G. KENNEDY, L; F. Non. 

